Airway, responsiveness and inflammation in adolescent elite swimmers

Lise Pedersen; T.K. Lund; P.J. Barnes; S.A. Kharitonov; V. Backer

Airway, responsiveness and inflammation in adolescent elite swimmers

Lise Pedersen, T.K. Lund, P.J. Barnes, S.A. Kharitonov, V. Backer

Institut for Klinisk Medicin

48 Citationer (Scopus)

Abstract

Background: Whereas increased airway hyperresponsiveness (AHR) and airway inflammation are well documented in adult elite athletes, it remains uncertain whether the same airway changes are present in adolescents involved in elite sport. Objective: To investigate airway responsiveness and airway inflammation in adolescent elite swimmers. Methods: We performed a cross-sectional study on adolescent elite swimmers (n = 33) and 2 control groups: unselected adolescents (n = 35) and adolescents with asthma (n = 212). The following tests were performed: questionnaire, exhaled nitric oxide (FeNO), spirometry, induced sputum, methacholine challenge, eucapnic voluntary hyperpnea (EVH) test, and exhaled breath condensate pH. Results: There were no differences in FeNO, exhaled breath condensate pH, cellular composition in sputum, or prevalence of AHR to either EVH or methacholine among the 3 groups. When looking at airway responsiveness as a continuous variable, the swimmers were more responsive to EVH than unselected subjects, but less responsive to metbacholine compared with subjects with asthma. We found no differences in the prevalence of respiratory symptoms between the swimmers and the unselected adolescents. There was no difference in FeNO, cellular composition of sputum, airway reactivity, or prevalence of having AHR to methacholine and/or EVH between swimmers with and without respiratory symptoms. Conclusion: Adolescent elite swimmers do not have significant signs of airway damage after only a few years of intense training and competition. This leads us to believe that elite swimmers do not have particularly susceptible airways when they take up competitive swimming when young, but that they develop respiratory symptoms, airway inflammation, and AHR during their swimming careers
Udgivelsesdato: 2008/8

Originalsprog	Engelsk
Tidsskrift	Journal of Allergy and Clinical Immunology
Vol/bind	122
Udgave nummer	2
Sider (fra-til)	322-327
Antal sider	5
ISSN	0091-6749
Status	Udgivet - 2008

Citationsformater

@article{b0629630066811deb05e000ea68e967b,

title = "Airway, responsiveness and inflammation in adolescent elite swimmers",

abstract = "Background: Whereas increased airway hyperresponsiveness (AHR) and airway inflammation are well documented in adult elite athletes, it remains uncertain whether the same airway changes are present in adolescents involved in elite sport. Objective: To investigate airway responsiveness and airway inflammation in adolescent elite swimmers. Methods: We performed a cross-sectional study on adolescent elite swimmers (n = 33) and 2 control groups: unselected adolescents (n = 35) and adolescents with asthma (n = 212). The following tests were performed: questionnaire, exhaled nitric oxide (FeNO), spirometry, induced sputum, methacholine challenge, eucapnic voluntary hyperpnea (EVH) test, and exhaled breath condensate pH. Results: There were no differences in FeNO, exhaled breath condensate pH, cellular composition in sputum, or prevalence of AHR to either EVH or methacholine among the 3 groups. When looking at airway responsiveness as a continuous variable, the swimmers were more responsive to EVH than unselected subjects, but less responsive to metbacholine compared with subjects with asthma. We found no differences in the prevalence of respiratory symptoms between the swimmers and the unselected adolescents. There was no difference in FeNO, cellular composition of sputum, airway reactivity, or prevalence of having AHR to methacholine and/or EVH between swimmers with and without respiratory symptoms. Conclusion: Adolescent elite swimmers do not have significant signs of airway damage after only a few years of intense training and competition. This leads us to believe that elite swimmers do not have particularly susceptible airways when they take up competitive swimming when young, but that they develop respiratory symptoms, airway inflammation, and AHR during their swimming careers Udgivelsesdato: 2008/8",

author = "Lise Pedersen and T.K. Lund and P.J. Barnes and S.A. Kharitonov and V. Backer",

note = "Times Cited: 0ArticleEnglishPedersen, LUniv Copenhagen Hosp, Bispebjerg Hosp, Dept Resp Med L, Resp & Allergy Res Unit, Bispebjerg 23, DK-2400 Copenhagen NV, DenmarkCited References Count: 50337HOMOSBY-ELSEVIER360 PARK AVENUE SOUTH, NEW YORK, NY 10010-1710 USANEW YORK",

year = "2008",

language = "English",

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journal = "Journal of Allergy and Clinical Immunology",

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TY - JOUR

T1 - Airway, responsiveness and inflammation in adolescent elite swimmers

AU - Pedersen, Lise

AU - Lund, T.K.

AU - Barnes, P.J.

AU - Kharitonov, S.A.

AU - Backer, V.

N1 - Times Cited: 0ArticleEnglishPedersen, LUniv Copenhagen Hosp, Bispebjerg Hosp, Dept Resp Med L, Resp & Allergy Res Unit, Bispebjerg 23, DK-2400 Copenhagen NV, DenmarkCited References Count: 50337HOMOSBY-ELSEVIER360 PARK AVENUE SOUTH, NEW YORK, NY 10010-1710 USANEW YORK

PY - 2008

Y1 - 2008

N2 - Background: Whereas increased airway hyperresponsiveness (AHR) and airway inflammation are well documented in adult elite athletes, it remains uncertain whether the same airway changes are present in adolescents involved in elite sport. Objective: To investigate airway responsiveness and airway inflammation in adolescent elite swimmers. Methods: We performed a cross-sectional study on adolescent elite swimmers (n = 33) and 2 control groups: unselected adolescents (n = 35) and adolescents with asthma (n = 212). The following tests were performed: questionnaire, exhaled nitric oxide (FeNO), spirometry, induced sputum, methacholine challenge, eucapnic voluntary hyperpnea (EVH) test, and exhaled breath condensate pH. Results: There were no differences in FeNO, exhaled breath condensate pH, cellular composition in sputum, or prevalence of AHR to either EVH or methacholine among the 3 groups. When looking at airway responsiveness as a continuous variable, the swimmers were more responsive to EVH than unselected subjects, but less responsive to metbacholine compared with subjects with asthma. We found no differences in the prevalence of respiratory symptoms between the swimmers and the unselected adolescents. There was no difference in FeNO, cellular composition of sputum, airway reactivity, or prevalence of having AHR to methacholine and/or EVH between swimmers with and without respiratory symptoms. Conclusion: Adolescent elite swimmers do not have significant signs of airway damage after only a few years of intense training and competition. This leads us to believe that elite swimmers do not have particularly susceptible airways when they take up competitive swimming when young, but that they develop respiratory symptoms, airway inflammation, and AHR during their swimming careers Udgivelsesdato: 2008/8

AB - Background: Whereas increased airway hyperresponsiveness (AHR) and airway inflammation are well documented in adult elite athletes, it remains uncertain whether the same airway changes are present in adolescents involved in elite sport. Objective: To investigate airway responsiveness and airway inflammation in adolescent elite swimmers. Methods: We performed a cross-sectional study on adolescent elite swimmers (n = 33) and 2 control groups: unselected adolescents (n = 35) and adolescents with asthma (n = 212). The following tests were performed: questionnaire, exhaled nitric oxide (FeNO), spirometry, induced sputum, methacholine challenge, eucapnic voluntary hyperpnea (EVH) test, and exhaled breath condensate pH. Results: There were no differences in FeNO, exhaled breath condensate pH, cellular composition in sputum, or prevalence of AHR to either EVH or methacholine among the 3 groups. When looking at airway responsiveness as a continuous variable, the swimmers were more responsive to EVH than unselected subjects, but less responsive to metbacholine compared with subjects with asthma. We found no differences in the prevalence of respiratory symptoms between the swimmers and the unselected adolescents. There was no difference in FeNO, cellular composition of sputum, airway reactivity, or prevalence of having AHR to methacholine and/or EVH between swimmers with and without respiratory symptoms. Conclusion: Adolescent elite swimmers do not have significant signs of airway damage after only a few years of intense training and competition. This leads us to believe that elite swimmers do not have particularly susceptible airways when they take up competitive swimming when young, but that they develop respiratory symptoms, airway inflammation, and AHR during their swimming careers Udgivelsesdato: 2008/8

M3 - Journal article

SN - 0091-6749

VL - 122

SP - 322

EP - 327

JO - Journal of Allergy and Clinical Immunology

JF - Journal of Allergy and Clinical Immunology

IS - 2

ER -